/Engine/Source/Developer/DeveloperToolSettings/Classes/Settings/ProjectPackagingSettings.h
Gets a list of all valid packaging configurations for the current project
static [TArray](API\Runtime\Core\Containers\TArray)< [EProjectPackagingBuildConfigurations](API\Developer\DeveloperToolSettings\Settings\EProjectPackagingBuildConfigurat-) > GetValidPackageConfigurations()